Pasteurizer.



' P. J. MAGNISH.

PASTEURIZER.

APPLICATION FILED MAR. 5, 1909. 1,023,323. Patented Apr. 16, 191-2.

2 SHEETS-SHEET 2. 0

UNITED STATES PATENT curios.

EREDEBIGK J. MACNISH, OF OAK PABK, ILLIITOIS, LSSIGNOR T0 GBEAMEEY PACKAGE MANUFACTURING COMPANY, OF CHICAGO, ILLINQIS, A COBIPQRATION OF ILLINOIS.

rns'rnunizun.

Specification of Letters Patent.

Patented Apr. 16,1912.

area larch-5, 1909. Serial No. 401,482.

To all whom it may concern;

Be it known that I, FREDERICK J. Meo- NISH, a citizen of the United States, residing at Oak Park, in the county of Cook and v State of 11linois,have invented certain new and useful Improvements in 'Pasteurizers, of which the following is a specification.

This invention relates particularly to apparatus used for pasteurizing. milk and cream.

.Gne of the objects of this invention is to provide improved means for obtaining a constant and uniform circulation of the heating medium.

Another object of the invention is to i-mprove the general construction of pasteur-: izers of the class indicated.

In the accompanying drawings, Figure 1 is a vertical central section through a pasteurizer embodying the "features of my invention- Fig. 2 is a top plan view with the cover removed, and portions broken away. Fig. 3 is a detail illustrating themeans for obtaining a circulation of the terror diameter and of greater height than heating medium. w The embodiment selected for illustration comprises a cylindrical casing consisting of a cylindrical wall l'attached to a circular" continued through the ad accnt .s-rde of the a base 2, said base being, in this instance, supthe cylindrical wall 1 is attached an annular E sultmg from condensation of the steam adtached to the base 2 by suitable means, such as the nuts 6. A cylinder 7 is secured at its lower end'to a disk 8 on the sieeve 5, and at g mg at one end a drama yalve 35, the other end of said pipe extendiugupward through its upper end to an annular flangefi upon the casing-section 4. It will be seen that the parts 1, 2, 4:, 7 and 8 form a chamber 10 for the heating medium; the cylinder 7 and the disk 8 forming a chamber 11 for the milk or other liquid to be treated. The

chamber 11 is closed by a suitable cover 12 adapted to make a tight joint with the annular flange 9, said. cover being removably secured in place by suitable means, such as a.

screw 13 carried by pivoted loops 14 and engaging lugs 15 on saidcover.

A shaft 16 is rotatably mounted in the bearing sleeve 5, a collar 17 fixed on said shaft being rotatably seated in a recess in the upfper end of the sleeve. U on the portion 0 the shaft 16 projecting a ove'the upper end of the sleeve 5 are fixed arms 18 carrying two vertically extending vanes or blades 19, said blades being set at an 8 51 with the radius of the shaft 1'6 and extendll lg' into close proximity to the inner surface of the cylinder 7. The shaft 16 is rotated hysuitahlemeans, as, for example, a shaft '20 rotatably supported in bearings 21 and 22, and connected to the vertical shaft 16.

by means of bevel gear wheels 23. Upon the horizontal shaft 20 is a tight and a loose pulley 24 and 25, respectively.

Steam is admitted to the chamber 10 for heating water contained therein by means of a pipe 26' (Fig. 2) extending through the wall 1 and connectin with one end of a pipe '27 bent into the mm of anearly comthe nozzle 30, and secured to the ring 27.

.: An opening 32 is formed in the cylinder 29 opposite each nozzle 30, said opening being tube 31.

33 is an overflow pipe for the water remitted through the pipe 26.

Milk or cream is admitted to the chamber 11 by suitable means, such as a pipe 31 havthe base 2 and the disk '8 into communication with the chamber 11. A bowl or funnel 36 into which the may be poured or otherwise conducted is connected with the ipe 34. through the vertical standpipe 37. he heated milk leaves the upper end of the-chamber 11 through the outlet pipe 38. In operation, the steamescaping through the nozzles 30 causes an upward movement of the Water within the cylinder 29, the

water in said cylinder flowing 'over the,

upper end of said cylinder and downward between the wall 1 and the cylinder 29 and through'the openings 32. It will thus be seen that the nozzles 30 produce a constant upward movement of heated water upon the outside of the cylinder 7. The milk admitted to the chamber 11 through the pme 34 is thrown by the rapidly revolving vanes outwardly "against the lnner surface of the cylinder 7 whereby all portions of the body of milk are uniformly heated to the desired temperature, the milk rising until itreaches the upper end of the chamber 11 when it is discharged through the outlet pipe 38.

I would'have it understood that I desire not to be limited to the precise details of construction herein shown and described,

for various modifications will occur to persons skilled in the art.

I claim as my invention:

\ 1. In aipasteurizer, in combination, a milk or-cream container; aheating-medium container surrounding the first mentioned container; a partition surrounding said milk container within said heating-medium container; and inlet means for a heating medium in the'lower part of the heatingmedium container at the inner side of'said.

partition, said inlet means causing a circulation of the heating medium upwardly ,at the innerside of said partition and downwardly at the outer side thereof.

2. In a pasteurizer, in combination, a milk or cream container; a. heating-medium container surrounding the first mentioned'container' surrounding the first mentioned eon. tainer; .inlet means for the heating medium comprising a coil in the lower part of the second mentioned container and arranged.

around the first mentioned container; noz-. zles on said coil; and a partition attached to said coil, said nozzles being located between said partition and the or cream container, spaces being provided at the lower end of said partition for the passage of the heating medium from the outer side of said partition to theinner sidethereof.

- 4. In a pasteurizer, in combination, a milk or cream container; a heating-medium container;- inlet means for the heating medium comprising a coil in the lower part of the second -mentioned container and arranged around the first mentionedcontainer, said coil being arranged to discharge said heating medium at a plurality of points; a nozzle surrounding each of saiddischarge points; and .a partition surrounding the milk or cream container and being located adjacent "tainer surrounding the first mentioned conto said coil, said partition having an opening therein opposite to and communicating with each of said nozzlesw 5. In a pasteurizer, incombination, a milk I or cream container; a heating-medium container surrounding the first mentioned container; a partition in the' heating-medium container surrounding the milk or cream container; and means located within the.

space bounded by said partition for heating the,heati'ng medium, said partitionbeing arranged to permit the flow of the heating medium from the outside of said partition to the inner side thereof.

6.' In a pasteurizer, in combination, a cylindrical container for' a heating medium; a cylindrical container for milk-or cream, the

second mentioned container being located within the first mentioned/container; inlet and outlet 'means for the milk or cream container; inlet and outlet means for the heat.

ing-medium container; and a cylindrical' partition in the first mentioned container surrounding the second mentioned container, the inletmea'nsfor the heating medium being arranged to cause an pward movement of the heating medium in he space between.

the milk or cream container and said partition, spaces being-provided at the lower end of said partition for the passage of the.

heating medium from the outer side of said partition to the inner side thereof.

FREDERICK J. MACNISH.

Witnesses:

J. H. Gonmmr, I ALMA KOLAR. 

